HI i have a 1990 dodge caravan with the 2.5l non turbo and the rings are done its still running but it wont pass emissions test in new jersey i was thinking about swaping to something fuel injected and more fuel efficient what engine can i swap into it with out the hassle of welding new motor mounts and keepiong my tranny i thought about maybe a neon engine does any one know what can i put in it?